Lapis dentalis
[医] 牙垢, 牙石
🧩 词语组成解析
[医] 石
🗣️ 情景例句
I know you are.
我知道你是。
Who do you want to speak to ?
你要跟谁讲话？
Whose sweaters are these?
这些都是谁的毛衣？